Zobrazeno 1 - 10
of 239
pro vyhledávání: '"Spekkens Robert W."'
Our article described an experiment that adjudicates between different causal accounts of Bell inequality violations by a comparison of their predictive power, finding that certain types of models that are structurally radical but parametrically cons
Externí odkaz:
http://arxiv.org/abs/2412.02829
Autor:
Centeno, Daniel, Erba, Marco, Schmid, David, Selby, John H., Spekkens, Robert W., Soltani, Sina, Surace, Jacopo, Wilce, Alex, Yīng, Yìlè
Tomographic locality is a principle commonly used in the program of finding axioms that pick out quantum theory within the landscape of possible theories. The principle asserts the sufficiency of local measurements for achieving a tomographic charact
Externí odkaz:
http://arxiv.org/abs/2407.21688
We provide the first systematic technique for deriving witnesses of contextuality in prepare-transform-measure scenarios. More specifically, we show how linear quantifier elimination can be used to compute a polytope of correlations consistent with g
Externí odkaz:
http://arxiv.org/abs/2407.09624
What types of differences among causal structures with latent variables are impossible to distinguish by statistical data obtained by probing each visible variable? If the probing scheme is simply passive observation, then it is well-known that many
Externí odkaz:
http://arxiv.org/abs/2407.01686
Publikováno v:
Journal of Causal Inference, Vol 7, Iss 2, Pp 156-65 (2019)
The problem of causal inference is to determine if a given probability distribution on observed variables is compatible with some causal structure. The difficult case is when the causal structure includes latent variables. We here introduce the infla
Externí odkaz:
https://doaj.org/article/2e0c0ecde1514e1ebe623c17d54fdc7e
Autor:
Lee Ciarán M., Spekkens Robert W.
Publikováno v:
Journal of Causal Inference, Vol 5, Iss 2, Pp 689-696 (2017)
We provide a scheme for inferring causal relations from uncontrolled statistical data based on tools from computational algebraic geometry, in particular, the computation of Groebner bases. We focus on causal structures containing just two observed v
Externí odkaz:
https://doaj.org/article/f0cab09ab7754ba78eb168aa2e1bc99d
When should a given operational phenomenology be deemed to admit of a classical explanation? When it can be realized in a generalized-noncontextual ontological model. The case for answering the question in this fashion has been made in many previous
Externí odkaz:
http://arxiv.org/abs/2302.07282
Publikováno v:
Physical Review A 108, 022207(2023)
Interference phenomena are often claimed to resist classical explanation. However, such claims are undermined by the fact that the specific aspects of the phenomenology upon which they are based can in fact be reproduced in a noncontextual ontologica
Externí odkaz:
http://arxiv.org/abs/2211.09850
Autor:
Polino, Emanuele, Poderini, Davide, Rodari, Giovanni, Agresti, Iris, Suprano, Alessia, Carvacho, Gonzalo, Wolfe, Elie, Canabarro, Askery, Moreno, George, Milani, Giorgio, Spekkens, Robert W., Chaves, Rafael, Sciarrino, Fabio
Publikováno v:
Nat Commun 14, 909 (2023)
In a Bell experiment, it is natural to seek a causal account of correlations wherein only a common cause acts on the outcomes. For this causal structure, Bell inequality violations can be explained only if causal dependencies are modelled as intrinsi
Externí odkaz:
http://arxiv.org/abs/2210.07263
Our article [arXiv:2111.13727(2021)] argues that the phenomenology of interference that is traditionally regarded as problematic does not, in fact, capture the essence of quantum theory -- contrary to the claims of Feynman and many others. It does so
Externí odkaz:
http://arxiv.org/abs/2207.11791